NEC4: Assessing Compensation Events Part 2 - Price | Gather

18 Feb 2026 · 61 min
1:00:59

This webinar, presented by Glen Hyde (GMH Planning) with contributions from David Allen (CICA Southern/Sika) and Ben (Gather Record Management), completes the series on NEC4 compensation events by focusing on the price assessment stage. After recapping the compensation event process and the concept of the dividing date, the presenters explain the two primary methods for assessing price changes under Clause 63.1 (defined‑cost impact plus fee) and Clause 63.2 (agreement on rates or sums). Through detailed worked examples – a deletion of an M&E building and a change to a concrete beam – they demonstrate how to calculate the effect on defined cost, apply the fee, and translate the result back onto the activity schedule or bill of quantities, preserving the contractor’s original tender position. The session highlights common misunderstandings (e.g., comparing the schedule price directly with forecast cost), practical tips for building robust quotations, risk allowances, and record‑keeping, and outlines how to implement the price change in the contract documents. A Q&A segment addresses issues such as splitting compensation events, delayed quotations, repeated revision requests, and the interplay of time and money. The presenters stress the importance of a static dividing date, accurate defined‑cost modelling, and collaborative, timely communication to avoid disputes.

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